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Raising Edge in S5?

7/28/2008 2:36 PM	Rate (0)
peva Posts: 38 Rating: (0)	Hello, all sorry to asking maybe dumb question. I'm quite new to S5 and I'm fighting with the problem hoe to check for the raising edge of input. I can't find anything in the docs, can someone help me? Thank you in advance, Petr
peva Posts: 38 Rating: (0)
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7/28/2008 3:57 PM	Rate (0)
Wizard Diamond Member Joined: 4/24/2006 Last visit: 1/9/2026 Posts: 9104 Rating: (1202)	Hi petr, Have you seen this faq: http://support.automation.siemens.com/WW/view/en/153029 Perhaps it's useful Best regards, Wizard

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7/28/2008 3:58 PM	Rate (0)
GrzegorzG Posts: 63 Rating: (19)	You have to use a flag bit or bit in DB to memorize previous state of input, for example: A I0.0 // state of I0.0 AN F0.0 // memorized state in previous scan = F0.1 // detection of rising edge A I0.0 // state of I0.0 = F 0.0 // memo for next program scan. Check for signal change must be done before writing it's state to the memo.
GrzegorzG Posts: 63 Rating: (19)	Last edited by: GrzegorzG at: 7/28/2008 10:23 PM
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